Method for manufacturing stent
First Claim
1. A method for manufacturing a stent, the method using a jig in which detachable protruding pins are installed at all respective location points at which circumference division lines and length division lines, set by equally dividing a circumference (W) and length (L) of a cylinder having a diameter (R) and the length (L) identical to those of a stent to be manufactured, intersect each other, the method forming cells through intersection of a wire by setting any one reference point of the location points as a start point and repeatedly bending and moving the wire from the start point upward and downward to pass over the protruding pins located in diagonal directions, the method comprising:
- step A of forming part of a first body by moving a first wire in a zigzag form from a first start point at one end of the jig to a first point at the other end of the jig;
step B of forming a lower first head by repeating a pattern of bending the first wire in a zigzag form from the first point to a first change point at the other end of the jig;
step C of forming part of the first body by bending and moving the first wire in a zigzag form from the first change point to a second point at the one end of the jig; and
step D of forming an upper first head by repeating a pattern of bending the first wire in a zigzag form from the second point to the first start point;
wherein step A comprises;
step A-1 of moving the first wire from the first start point along an upward diagonal line by l, wherein l is a distance of a diagonal line extending by one interval between the length division lines with respect to one interval between the circumference division lines; and
step A-2 of spacing a corresponding location point from a portion formed at step A-1 by moving the first wire from an end point of step A-1 along a downward diagonal line by 2l;
wherein step C comprises;
step C-1 of repeating a zigzag bent pattern formed by moving the first wire from the first change point along a downward diagonal line by l and then moving the first wire from a corresponding location point along an upward diagonal line by l; and
step C-2 of spacing a corresponding location point from a portion formed at step C-1 by moving the first wire from an end point of step C-1 along an upward diagonal line by 2l;
wherein step A comprises alternately repeating patterns of step A-1 and step A-2; and
wherein step C comprises alternately repeating patterns of step C-1 and step C-2.
1 Assignment
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Accused Products
Abstract
The present invention relates to a method for manufacturing a stent, the method using a jig in which detachable protruding pins are installed at all respective location points at which circumference division lines and length division lines intersect each other, the method forming cells through intersection of wire by setting any one of the location points as a start point and repeatedly bending and moving the wire from the start point upward and downward to pass over the protruding pins located in diagonal directions, wherein a first stent woven such that intersection portions formed through the intersection of a wire are spaced apart from each other in a diagonal direction and arranged one for each length division line and a second stent woven to maintain the structural stability of the first stent and to prevent the first stent from being twisted can be provided as a single stent.
27 Citations
10 Claims
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1. A method for manufacturing a stent, the method using a jig in which detachable protruding pins are installed at all respective location points at which circumference division lines and length division lines, set by equally dividing a circumference (W) and length (L) of a cylinder having a diameter (R) and the length (L) identical to those of a stent to be manufactured, intersect each other, the method forming cells through intersection of a wire by setting any one reference point of the location points as a start point and repeatedly bending and moving the wire from the start point upward and downward to pass over the protruding pins located in diagonal directions, the method comprising:
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step A of forming part of a first body by moving a first wire in a zigzag form from a first start point at one end of the jig to a first point at the other end of the jig; step B of forming a lower first head by repeating a pattern of bending the first wire in a zigzag form from the first point to a first change point at the other end of the jig; step C of forming part of the first body by bending and moving the first wire in a zigzag form from the first change point to a second point at the one end of the jig; and step D of forming an upper first head by repeating a pattern of bending the first wire in a zigzag form from the second point to the first start point; wherein step A comprises; step A-1 of moving the first wire from the first start point along an upward diagonal line by l, wherein l is a distance of a diagonal line extending by one interval between the length division lines with respect to one interval between the circumference division lines; and step A-2 of spacing a corresponding location point from a portion formed at step A-1 by moving the first wire from an end point of step A-1 along a downward diagonal line by 2l; wherein step C comprises; step C-1 of repeating a zigzag bent pattern formed by moving the first wire from the first change point along a downward diagonal line by l and then moving the first wire from a corresponding location point along an upward diagonal line by l; and step C-2 of spacing a corresponding location point from a portion formed at step C-1 by moving the first wire from an end point of step C-1 along an upward diagonal line by 2l; wherein step A comprises alternately repeating patterns of step A-1 and step A-2; and wherein step C comprises alternately repeating patterns of step C-1 and step C-2. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification